RRC ID 1682
Author Hossain KG, Kalavacharla V, Lazo GR, Hegstad J, Wentz MJ, Kianian PM, Simons K, Gehlhar S, Rust JL, Syamala RR, Obeori K, Bhamidimarri S, Karunadharma P, Chao S, Anderson OD, Qi LL, Echalier B, Gill BS, Linkiewicz AM, Ratnasiri A, Dubcovsky J, Akhunov ED, Dvorák J, Miftahudin, Ross K, Gustafson JP, Radhawa HS, Dilbirligi M, Gill KS, Peng JH, Lapitan NL, Greene RA, Bermudez-Kandianis CE, Sorrells ME, Feril O, Pathan MS, Nguyen HT, Gonzalez-Hernandez JL, Conley EJ, Anderson JA, Choi DW, Fenton D, Close TJ, McGuire PE, Qualset CO, Kianian SF.
Title A chromosome bin map of 2148 expressed sequence tag loci of wheat homoeologous group 7.
Journal Genetics
Abstract The objectives of this study were to develop a high-density chromosome bin map of homoeologous group 7 in hexaploid wheat (Triticum aestivum L.), to identify gene distribution in these chromosomes, and to perform comparative studies of wheat with rice and barley. We mapped 2148 loci from 919 EST clones onto group 7 chromosomes of wheat. In the majority of cases the numbers of loci were significantly lower in the centromeric regions and tended to increase in the distal regions. The level of duplicated loci in this group was 24% with most of these loci being localized toward the distal regions. One hundred nineteen EST probes that hybridized to three fragments and mapped to the three group 7 chromosomes were designated landmark probes and were used to construct a consensus homoeologous group 7 map. An additional 49 probes that mapped to 7AS, 7DS, and the ancestral translocated segment involving 7BS also were designated landmarks. Landmark probe orders and comparative maps of wheat, rice, and barley were produced on the basis of corresponding rice BAC/PAC and genetic markers that mapped on chromosomes 6 and 8 of rice. Identification of landmark ESTs and development of consensus maps may provide a framework of conserved coding regions predating the evolution of wheat genomes.
Volume 168(2)
Pages 687-99
Published 2004-10
DOI 10.1534/genetics.104.034850
PII 168/2/687
PMID 15514045
PMC PMC1448827
MeSH Chromosome Mapping* Chromosomes, Plant / genetics* Expressed Sequence Tags* Gene Deletion Gene Duplication Genes, Plant* Genetic Markers Genome, Plant Hordeum / genetics Oryza / genetics Sequence Alignment Triticum / genetics*
IF 4.075
Times Cited 55
WOS Category GENETICS & HEREDITY
Resource
INFORMATION Wheat